Box-making machine



Feb. 4, 1930;

J. ALBRECHT BOX MAKING MACHINE Filed Jan- I9, 1925 10 Sheets-Sheet 1 INVENTOR.

I I I Feb. 4, 1930.

J. ALBRECHT .BOX MAKING MACHINE Filed Jan-19, 1925 10 Sheets-Sheet 2 m a MS Q INVENTOR.

BY Y

A TTORNEYS:

Feb. 4, 1930. J. AL BRECHT 1,745,021

" BOX MAKING MACHINE File Jan- 1925 10 Sheets-Sheet 5 INVENTOR.

ATTORNEYS.

Feb. 4, 1930. J.- ALBRECHT Box MAKING MACHINE File Jan-19. 1925 10 Sheeis-Sheet 4 a33 aw v ATTORNEYS.

Feb. 4, 1930. J. ALBRECHT BOX MAKING MACHINE 1o 'She ets-Sheet 5 Filed Jan. 19, 1925 I INVENTOR {ITTORNEYS Feb. 4, l930.- J. ALBRECHT BOX MAKING MACHINE Fil n- 1 1925 v 10 Sheets-S Qget INVENTOR.

"1) a ATTORNEYsf BOX MAKING MACHINE 192s 1o Sheets-Sheet 7 .INVENTOR. K' @ZZWAI' BY I i diam i ATTORNEYS Feb. 4-, 1930. J ALBRECHT BOX MAKING MACHINE Filed n-1 1925 10 Sheets-Sheet 8 INVENTOR.

ATTORNEY:

Feb. 4,- 1930. J ALBRECHT 1,746,021

7 Y Box MAKIfiG MACHINE Filed Jan. 19, 1925 1o She etsSheet 9 INVENTOR.

A TTORNEYS Feb. 4, 1930. i J. ALBRECHT 1,746,021 I BOX MAKING MACHINE Filed.Jan. 19, 1925 10 Sheets-Sheet: 1o

'Paltented Feb. 4,

' L censee -Eag r'KEW UNEE, :swis oesm' I 1.

fBOXMAKI GMAQHm sAppli'eifion filed 'ra ury 19, 1925. Serial No. 3,291,

f llhis"inverrtion reletesito i -in p'rovelfents i n et he art ozfifgbox' malllflffidhkhfie. More: *pe'rticu l 'er lyesteteclffthis iiiriv'ention relates to s me- Chine 1 :constitiiting a n im rovem nt; onthe' mach-lire di'sclo'se'diinimy Patent N0. 1360,69?)

- ocllof bofx rrx 'an iiiacture- I is the object "03f this invention to imowe the machine disclo'setlinsaid "patent increasing-the clegree to 'Whi'chsirc-h me- H el rine and the *se't e'rarl parts thereof 'are operreted medhaiii'celily zmleu'tomatically; alse to gprovitle ei series of interlocking controls 'to preventthe' operator trorri setting the parts motio ri in improper sequence.

of op emtionenclthe corise'quent efii'ci'ency V of a rnaehineo fthis oharreter may be greatly increased by providing' for the ine'dhanica'l the performance of all :o emtions under the general uidance of-fa" human; intelligence.

[l -he operateris required tofee'l material to it he machine in a particular manner and 1-n1-s ti'a te fat thepr-eper itimesfltheseverail op'era- 111 plan of a portionofthe mechanism shown tions whereby the completetlloox i-siormed.

Hi1 performing these opealit ions mecharri- 'oa l ly srncl great speed therefore, care must kh'e' taken to gusvfih against such mistal'res as -might be made by" tihe"0per-2itor which fimight resultin serious injury :tothe opera tor tor inhrezika'ge of the machine. I

"Moire-particularly .statedfiitiis my object to :rnake 'pmcticalthe izrceelenatio'mocf eper ati'ons hon'ductesl-on a machine :ort this character iby pnovicling a system not interlocking contro'ls so thet re'garclless'gofithe speed 'BJtWhiChiSUCh fopemtions sa re. mechanically, reonduct'em the operator icennohr byflbfeoomimg bewildered, and'ibyinitiating-(operations in propel" se- :quenceis'et parts in motion which "might m atic ciross stapling meehai hsmyan'cl a novel ta ni-cl imp; ved-teeclftheli'eifor, prowi-sioniof an m sueenmia c'or ttfrelfof. thedrum i pon which 713 July also-21 n improved me'thi the Work and of the drum or. block HIP'OIZL I It 'Wi'll r'eaeli1y s understood th at -the-r a pid fbreak npiath'e irrachi qwith lpossiblevinjury the: Ila'OXes'tare :forihed" Whereloy :siieh wills-rotate to a predetermined degree providing for :the necessary overlap and will iSll'bS- querrtlyx-retu'rn automatically ttofrits loriginal I posltion; to provide-tor mechanical high speed operation i of the fi'ange wihioh :renga'ges whichthe work is shaped; torprovi'demeans grneans tor controlling thedegre o fmovement of the several parts, and to gprovidemeans for automatically stopping at'prope 'vtimes I the several operations manually initiated, A35

eta-machine I I Figure 1 is a front elevatioh embodying this-invention;

shown in F-i-gurje 1.'

Figure 3.is ia diegmmmatic development "17 in plan o'fth'e machine shown in Figures-.1 and 2, some of the gea rsbeing'cliametirically I enlarged to 'ofiset *associatedLmechanisM which: woulcl' otherwise be concealed, the-corp-alrtsbeing shown 'i-nipla-n in Figure 36; s -F1g-ure4 is ail-enlarged fragmentarydetail insFigure 3. s

V Figure 15 1s a side elevation-of a particular 0 I i type otcl utch which it is preferred to use 1 connection with this invention,

line -;Z17roEigure6.e I i I F gure i81is, e jview similar to Figure showmgfi the parts in different relative ,posi'e tions.,,

,Figure 9 is air elevatioii shoiv ihg the'baCk- QO lash cemhstopwillustrated in plan in Eig-V lire I v Figure'lO'isa section teke'rl'onlinel'O- lf) of Figure 3. F g .v 'nlarged'sec'tion takerr'on' line 11 -11 of Fig; ure 4; I 1 Figure 12 is'aHVieW similar to Figurell taken on section IlQ-Ell-Qxf Figure 4.

ig' r'i re- 1-3 is 'w detziil view-gin side elev tion '100 Figure 2 -'sarearielevatlor ofthemaehine v 7 rect proportions andrelative positions of the 1715 I is aidetai'lview eomprising s an 95 of automatic mechanism for lifting the ratchet dogs shown in Figures 11 and 12.

Figure 14 is a detail view taken on a section indicated at 1414 in Figure 4.

Figure 15'is a view similar to Figure 14 showing the parts indifferent relative positions. V

Figure 16 is a detail viewtaken on section 16 16 of F igure 4. V

Figure 17 is a view similar to Figure 16 showing the parts in different relative positions.

Figure 18 is a section taken on line 18 18 of Figure 16. V.

Figure 19 is a section taken generally on line 19-19 of Figure 3, certain parts unneces'saryto an understanding of the mechanism at the end of the machine being omitted.

Figure 20 is a detail view taken on a sec tion indicated at 2020 in Figure 19 with parts inthe background omitted for the sake of clearness.

Figure 21 is a detail view taken on a section indicated at 21-21 in Figure 19.

Figure 22 is adetail in plan of deformed worm.

Figure 23 is a front elevation of the drum and associated parts. i V

Figure 24 is an end elevation. of the drum.

Figure 25 is a sectional view taken on section 2525 of Figure 23.

Figure26 is a detail view in plan of the pressure'bar and-the connections for actuating the mechanism'of the drum.

Figure 27 is a detail view taken generally on a section indicated at 27-27 in Figure 24. v V

Figure 28is a View similar to Figure 27 showing the parts in different relative positions. 1 v

Figure 29 is an isometric view of the blank in readiness to be acted upon by a machine embodying this invention.

Figure 30 is a side elevation of the blank after it has been sawed to the form of a disk and is ready for use as a box bottom.

Figure 31 represents the material used to construct the sides and re-enforcement of the box.

Figure 32 is an isometric view of a partially completed box after the side material has been fastened together about the bottom but has not yet been secured thereto.

Figure 33 shows a completed box isometrically. e I p V Figure 34 is a section through the completed box taken on'line 34-434 of Figure 33.

Figure 35 is a detail View in rear elevation of parts which interact in one direction only of their relative movement to engage a clutch for effecting a subsequent operation of the, machine. r

Figure 36 is a general plan view.

Like parts are identified by the same reference characters throughout the several Views.

The frame structure of the present machine is very similar to that disclosed in my 7 Column 1 supports an automatic nailing device deslgprior patent above referred to.

ent that the blank from whichthe bottom or head of a box is to be formed will be gripped between two chuck, disks 7 and 8, commonly termed flanges in the box makers art, and after this blank has been cut or trimmed to the desired circular contour, aside wall blank will be engaged by suitable clamping jaws.

carried'by a drum or mandrel 9, which will then be moved to bring a'portion of one margin into registry with the margin of the previously contoured circular bottom. The side wall blank will then be progressively wound into cylindrical form with its side margin embracing said contoured bottom, to which it is progressively nailed or stapled. The wall is then released from the drum and the latter retracted axially from the open end of the 2 box, whereupon a retraction of the chuck disk 8 from the chuck 7 releases the completed-box. In the construction as shown in said former patent, much depended upon the skill and experience of the operator, whereas the machine herein described is so far automatically con:

trolled and operated that the work of the operator is reduced to a mere sequence of simple operations which can be properly performed by any person of ordinary intelligence and the work expedited withthe precision and speed of an automatically acting, mechanically operated mechanism.

Main: driving connections The shaft of the pulley 3'carries a gear meshing with a gear 91 on a shaft 92, on' the other end of which is a sprocket 93 connected by a chain 94 with a sprocket 95 on shaft 32, the latter carrying a clutch member 96 interlocking respectively with collars loosely mounted on the shaft'32 and integral respectively with beveled reversing gears 98 and 99 facing each other and meshing with the bevel the driving gear 17. The driving gear 17 meshes with the gear 16 in splined connection withthe shaft15 which overlies theshaft 18. The drum or mandrel 9 is splined to the shaft 15, this drum being shown in detailin Figures 23 to '26, l inclusive. The chuck disk 8 is -gear ,97 mounted on a jack shaft 18 carrying 110 V 1 t-shaft32 carries sprocket gears31and 60, the

nnountedat the end ofthe shaft 15 nearest the I column in a position to ;;grip the box bottom blank between it'and a similarvchuckdisk 7 1 tre -n2 mountedon a -tai-l stock carriedby. the column '1 These chucktvdisks are provided with suit able work-emqagingmeans suc'h as teeth and I I-are' adapted-to-grip between them the blank 650- best shown in Fig; 2 9 preparatory to sawingtheblank intothe circularform of the box bottom illustrated-"in Figure: 30 The cross gear 31 being connected by a chain-29 with sprocket gear 30 on shaft 26 and gear 60 being connected bya chain with a sprocket gear 58Ion'shaft 57. The sprocket gear 30 is loosely mounted onthe shaft26 and-is connected. therewith. for operation'by means of a-Mor- -gjan c'lutch ofthegeneralltype shown in Pat- .ent No. 586,711,- d-ated July '20t'h, 1 897 and also illustrated in t-Eigures to 9, inclusive,

.The-a'xial movement of adjustment of the .shaft isderived fromgtheishaft 26,-from which motionis" transmitted through the gear wheels Z'Z and 28,;(Fig.-;3), crank .shaft25,- crank arm 24, crank pin-23 verticallyslotted link-Inember22 Fig. l) and connecting rod Y '19. The latter is pivotally conn'ectedwith the linki member can 21 andjis swive'led at to the-endof-the Qsha-ft15. The'length of the n so a and chuck disk -8.in one, d1rection to grlpplng -.c r,ank arm 2% is SIlCh' aSLtO-"I ITOVG theshaft. 15

en-g-agement with the zbexbottom blank and: to inpve itin, the other zdi rection to la box releasing position. 'The gears 27ft11d28 which ktransmit motion fromthe shaft 26 torthe shaft Larei-n a one'gtov two ratio, whereby a, completegrotation offshaft 26 will-cause,crankf shaft 25. and its associated-crank arm 24 to re rmi -sha re lu o he e, y operating shaft QG-intermittently ihfOIlc turn movements, starting from a' uniform z ero point, it iSQ QYiOHs that shaft15 and its associatedgchuck disk {Smay-b'e alternately moved axially togwork gripping position and subsequently retracted to work releasing position. This movement of the drivingsh'aftQG is controlled by theMorgan clutch 33 which oper;

ates *to connectthe looseggear 3O with' rrthe .,shaft26yas willnowbe described, f {1 V I 7 7 It will be observed. inQ Figure 6 that the sprocketwheel-fio is loosely rn'ountedupon a sleeve 3 7,whichissecured to the shaft by a 1 keyfifi; The, sprocket-wheel is" held" against longitudinal movement by the sleeveflange B8 and detachabledisk 39, secured to the end-of the shaft by the screwietOQ The sleeve 3fl-has a longitudinal'bore 41;.eXtended the form'of' :a semi-cylindrical groove along the f bearing portion ofthedsleeve which receives sprocket wheel'30. v The oscillatory clutch, dog 4e2 has anaeccentric extension 43:,whichisretestament groovefiiormally waiias'cyiitits rounded portionjet seated inflthe groove-and its eccentric face 45 facing out thesenotches, have strike plates 49. t 1: The clutch dog is urged toward locking position by a tension spring 47 which connects an exterior arm 48 of the dog with the sleeve 37, but its movement to clutching positionis normally limited by thespring actuated pivwardly, To connect the sprocket wheel with H the-sleeve 37 and shaft 2 6, the clutchdog is oscillatedto swing the portion 4:4 into one of the notch s l6 :intheinterior surface of'thesprocket wheel hub. The rac'lialshoulders of oted stop 35 (Fig; 5).. V The oscillatory mo'vementofthe dogarn to its normal position is limited by the stop 37 and to clutching position by the stop 38. The stops are'supported from the sleeve 87 and the stops 35 and 37 preventover rotation and fix the shaft I l in its normal or zero position. Backlash for backward rotationof shaft 26 is prevented a cam 76 (Fig. 9) provided with a shoulder '77 to be engaged by the resilient dog 780 when" the shaft-26 is in its zeroposition of rest, The tripstop 35 may be released by a flexible 1 connector or chain 79, whereupon spring l-7 engagement in one ofthe sprocket wheel notches as as soon, as such notch is' brought into registry with the dog.

. Itwill of coursebe understood tion of the trip to normal position-will rnot permit its-to re -engage the dog until the sprocket wheel and shaft have "performed one complete revolution from the position of re-V r V r that-whens, ver the dog arm 48 has moved past the point of its engagement with the trip 35, a restora 3 Ti ".30 f will oscillate the clutch dogintoposition of lease. Thetripmaytherefore'be manually J I fore deemed unnecessary,except to state that V the clutch as described with reference to shaft 2.6 may be-taken as representative alsoof the clutches 59, 138 and 328 herein referred to? V Th gdmmtor mandre-ZQ iworgandmhl t This drum isspli-ned to the shaft 15 'and axially reciprocated thereon, its reciprocative movement being derived from; thes'haft157 through the gear wheels 55, 56, crank-shaft 54;, crank53, connectingrod 51, slide --rod5O and the vertical shifter arm 292 '26) the latter beingforked' and engaged between the flanges 28 6 and287 (see Figs, 27. and 28) "of spool 285 looselyfmounted on the hub sleeve 28l of the drum '9' between thedrum hub 24:8 and a nut282 threaded on said sleeve.

The other end of the shifter fork 292 is guided" by asupportmg rod 292, as indicated in. Figare 26. The connecting rod 51 is z-pivotall'yj connectedwith the slide rod at-52and the 1 length .of the crank 53 determines the stroke or axial movement of'the drum. The driving gears 55 and 56 for the crankshaft 54 are in a one to two ratio and a Morgan clutch 59 is employed to connect the gear 58 with the shaft 57 whereby shaft 57 may be given one complete turn with a corresponding half turn movement of shaft 54='to actuate the drum to the work receiving position'in one instance and to the retracted position the next instance, in the same manner that the shaft 15 is actuated as above described.

Interlocking controls As previously indicated, the clutches 33 and 59 are manually engageable and are automatically disengaged. They are furthermore provided with a system of interlocking controls to prevent injury to the mechanism and to the operator such as might result through the accidental manipulation and release of one of these clutches at the wrong time. i

The stop member 62 Figs. 2 and 3) which controls automatic clutch'59 may conveniently take the form of a lever 63 fulcrumed at 64: (Fig. 2) and connected by a link 65 with a similar lever 66. The two levers are synchronously operated by a link 67 which is connected to thearm 68 of the rock shaft 69 which extends toward the front of the machine and is provided at its forward end with an operating handle 70 1). Upon the oscillation of this handle the stop member 62 for operating clutch 59 may be oscillated about pivot 64 to permit the engagement of the clutch. It will be noted, however, that the end of shaft 25 is notched as indicated in Figure 3 and lever 66 must move into said notch when stop member 62 oscillates to permit the'clutch 59 to engage. lVith the parts in the position indicated at Figure 3, therefore, it would be possible to engage clutch 59, but if shaft 25 were rotated one-half revolution to present its unnotched portion to lever 66, it would be impossible to operate clutch 59. Thisarrangement insures that the flange 8 will always be in its advanced position as indicated in Figure 3 before the drum 9 can be adjusted'axially in either direction.

The stop member 35 which controls automatic clutch 33 carries rigidly a T-shaped arm (Fig. 3) which moves therewith when it is not blocked by an eccentric member 760 (Fig. 3 and Fig. 1) carried by shaft 54;. In Figure 3 the position of the eccentric mem-' her 7 60 is such that clutch 33 may be engaged to rotate crank 24 180 degrees and thereby to retract flange 8. If, however, crank 53 were in its opposite position so that drum or block 9 were advanced the eccentric member 760 would then be in such a position as to block the T-shaped arm 75 whereby to make the release of stop or trip 35 impossible. Under such conditions the operator would be prevented-from making a mistake which might :when the block'or drum result in the retraction of the chuck disk 8 position."

lVhen the eccentric stop member 760 is in a position to permit the movement of clutch controlling dog or stop 35, the latter may be actuated by the operator through the medium of a foot pedal 780 and a chain 79 which is suitably guided on pulleys where necessary and which is-used to retract stop 35. The stop may be. actuated in the opposite direction 7 when pressures is relieved from pedal 780,

by means of a spring 80.

"The two interlocks above described prevent the power operation of the drum 9 and of the chuck disk 8 under any circumstances where the movements of either could cause injury to the other. I will. now describe the means by which rotative movement is transmitted'to shaft 15- and thence to block 9 and flange 8. I Step by step 400m rotation gwith reference to the shaft 18' and comprises a partof a bell crank (Figs. 11 and 12), the

other arm 114 of which is operated by a connecting rod 115,-crank pin 116, disc 117, and shaft 118. Shaft 118 (Fig. 3) is driven from was in its advanced gear 91 by gear 120, shaft 121 and bevel gears r 122 and 123. Itwill be obviousthat the continuous rotation of shaft 118 in the direction indicated by'the arrow in Figures 3 and 11 will produce oscillation of thebell crank including arms 113 and 114 and afcorres ponding intermittent rotation of ratchet wheel 110.

A spring 125 (Fig. 12) pressesupon each dog in a direction to depress its other extremity into operative contact :with the teeth of ratchet wheel 110.1

7 Control of step??? step movements Rock shaft 112 is provided with a rocker arm 127 in which is a pin 128. This pin rides upon an arcuately formed support 130 (Figs. 11 and 12)'which is sopositioned in Figure 4 as not to interfere with theoperative contact ofdogs 111 with the ratchet wheel 110. The member 130, however, may be oscillated to the 7 position in which it is shown in dotted lines in Figure 11 whereby to act upon. pin 128 to oscillate rock shaft 112 and thereby to lift the dogs 111 out of contact with ratchet wheel 110. I The dogs so lifted are supported for to and fro" movement on the upper surface. of; member .130;

" There are a number of difi'erent 1 ways tion transmitting connections already: de-

' scribed. :The arrangement issuch that when the dogs are lifted through theoscillation of "bar130 and. hand lever135 the-clutch at 138 is disconnected to prevent. unnecessarymovement of the connections foraactuating the dogs. ,'-The arrangemjentis also, such-that this clutch re enga'ges before the dogs reach;a;po-; si-tion for engagement with ratchet wheel 110.

- An arm- 139 v(liigj-ll )projects upwardly. from cross shaft 136and serves to operatean interlocking device which will hereinafter be I portion 153 .of-the sliding yoke, 154., This 7 yoke comprises agenerally rectangularframe described. It performs thefurther function;

of latching lever andiarm 130-in therextreme positions of these parts. 1 An ordinary. spring stop latch at140 engages arm 139 fric-' tionally in'the extreme positionsthereof and tends togretain the arm in either of such positions;

In addition to the means lfor manually lift ingbar 130 through the employment of-hand lever 135 to lift dogs 111 from ratchettwhe el 110, two separate devicesare suppliedfor'aw tomatically lifting bar 130 for this purpose. 7 A pin projects laterally from bar 130 and; as best shown'in' Figure 4:, extendsacross the arm 151 of rock shaft 152 and also acrossthe whichiis mounted to slide horizontally andis provided with an arm l55 hav'ing fingersxl5 6 and 157 engaged about the hand'1ever15 8by means of which the reversing clutch 96 is;

shifted ,(Fig. 3). Bar 153 of the frame or y0ke15 1-is provided at 159 with a cam surface formed as indicated inFigure 12 to interact with'pin 150 so'thatwhen the frame or yoke 154; is forced rear-wardly the portion of'cam surface 159-will be suchas to liftz'thecurvedl bar 130 and raise dogslll. It is obvious that this action will'occur whether or not the dogs are already raised and the obviouspurposeof r this arrangement is to-"provide an interlock; such'asto make it impossible:forthedogsto act upon ratchet wheel 110 .at such times' as, clutch" 96 is engaged with pinion 99 to rotate ratchet wheel110 'and parts connected. there with in a direction op'posite 'to that in which suchv 'whee'rand parts would be "operated i by the dogs.

CZwtch disengaging strike? controllingfst'ep byfste'p orratchetfeed'motion" 1 T'Referenceh as already beenmade to the arm 151 which islmounted upon rock shaft-- I52 Qwhich tal :es '{th'e,"form of a sle'ev el-l 'Ithrough this rock shaft is transmitted the power which lifts the dogs 111 "during nor mal machine operation. Rock shaft 152 car-V I ries afinger 1 60 which .is disposed parallel to the'plane inwhi'ch bevel gear 97 rotates and in close proximity to such gear. 1 Upon the gear is-niounteda striker member which is duplicated'in otherfgparts of the I ma'chine.,

The'purpose of tlie'striker'memberis to"'per-- mit limited'degree of rotation to theparts'j controlled thereby :and subsequently to dis-1 engage a clutch or equivalent means "tofper- 1 mit suchpar'tjsto stop. The structure of this particular striker member" is so organized as I v to 'peri'nit more than 360 degrees of rotation, of thepartscontrolled thereby. Of such'de vices asemployed in this machine, the striker member l6'5fwhich acts upon finger vor rock? arm is representative, and consequently 5 it will be described in detail; i

Referring particularly to Figurei'1 3 the gear 97'may be understood to be rotating in the" direction "indicated by the arrow. j This gear may rotate :in' either direction and in eithei jdirection'will lift rock arm160, but it o I is onlyin onedirection of 'gear' 97 that the llftlng'Of such rock arm issignificantLf' i The device 165 includes a rotor 17 O'which is} supported for limited "oscillatory movement with reference to the shaft" 18 with which gear 97 is "connected.i'The'degree ofjoscilla tion of'ro'tor '170' with reference to the shaft and geargis limited by a fixed spin 171 project ing from the face ofthe gear and b'y'an'adjustable stop 172 whichfislslotted and s e{ cured in position with reference to thef-face of the gear by means of a screw 173 extend =ing through the slot or stop member "172 and threaded to the gear; The rot'or'170 is prof-H vi'ded with a radial iar'm-174s withjastriker head 175 which is adapted to impinge-"upon the eam surface176 of rock armlev'er 160.1 Y The arm 17 4' strikes the stop comprising pin I 171 on the one hand: andstop member 172 on the other. The entire rotor is'normally held to a position'such that arm 17 1 abuts pin 17 1.; This :may be done'by means of ta 1 tensionspring 178 anchored at 17 9 to gear 97. The spring 178 is comparatively light and v if the-parts be assumed to'jbe rotating in the direction indicated by the arrow from the" starting point represented by the full line; position of rotor arm 174, it will be objvious" that in slightly less than360 degreesof rotao tion thestrikerroller 17 5 willcontact with-11 thefcarn surface 176 of rock arm160n iTh-e I resistance of therock ar'm will be more'than sufiicient to counteract thetension"offspring' i 178 As a consequence the entire rotor will 5 be held-stationary through as f'contact: with,

cam surfaces 176 while the gear 97 continues to rotate in the direction indicated by the arrow. This relative rotation between the gear and the rotor will continue until the adjustable stop 172 reaches therotor, the parts will act to advance the rotor with reference to gear 97 whereby to restore the rotor to its original position with reference to pin 171. In the meantime, the oscillation of arm 160 and sleeve 152 will have resulted as aforesaid in lifting dogs 111 from the ratchet wheel 110 and at the same time in throwing out the clutch at 138 and permitting the ratchet wheel to come to rest. It will be obvious that V the extentof movement which is permitted to the rotor 170 whereby it lags angularly behind gear 97 will represent a movement of such gear in excess of 360 degrees from its starting point before mechanism is automatically tripped to bring the gear to rest. Other similar striker or tripping devices which are used in this machine will all be designated in their entirety by reference character 165 although they may difler in proportions or in their specific details from that already described. 7

It will, of course, be noted that in the event that gear 97 is rotating counterfclockwise as shown in Figure 13 there will be no relative movement of rotor 17 0 with reference to such gear due to the fact that the rotor is already impinging stop pin 171 and the firstcontact of roller 17 5 with the cam surface 176 will lift rock arm 160. At such times,

however, the bar 130 which lifts dogs 111.

from engagement will ordinarily be already in its elevated position. so that this oscillation of arm 160 will be without ,efiect.

Operating connections for reversing lever 158 Reference has already been made to the fact that clutch96 is operated by means of a shifting lever 158 to engage shaft 32 alternatively with either of the bevel pinions 98 and 99 to rotate shafts 18 and 15 selectively in either desired direction of rotation. The lever 158.may be manually operated either by direct engagement thereof or through the medium of the rock shaft 180 to which such lever is connected and to which is also connected the hand lever 181 and a treadle 182, the-latter being linked to shaft 180 by means of a link 183 and an arm 184 projecting from such shaft. This arrangement makes it possible for the operator to shift clutch 96 manually from two different points in the machine Or, if he should be busy at someother task with'his hands, he may shift the clutch by rocking treadle 182 with his foot.

In addition to these different ways in which the operator may control clutch 96, there are also several ways in which such clutch may be controlled automatically. These will now be described. V

Keyed to the main shaft 15 of the machine is a sleeve 184. carrying a disk 185 (Figs. 3 and 14) which is provided upon one side with a striker device 165 corresponding to that already disclosed and supported for a limited degree of oscillation with respect to sleeve 184 and disk 185 The striker head 175 of the device justmentioned is adapted to act uponan adjustable trip element 186 having an abrupt shoulder at 187 and connected by means of screws 188 to the link member 189 supported for a slight oscillatory movement with reference to its pivotal connection at 190 with the handle 158.

Linkmember 189 is cut away at 191 and adj acent this cam-like cut the link passes through the yoke or frame 195 (Figs 14 to 18, inclusive) within which is mounted a pivotal support 196 fulcrumed' with reference to the'frame at 197 and normally maintained in contact with the stop 198 by means of a tension spring 199. l

The arrangement is suchthat when the pivoted support 196 is upright and in contact with stop 198, the link 189 will be held at such an'elevation that'shoulder 187 will clear the striker head 175. In Figure -14 the lever 158 is'illustrated in its neutral position and it will be obvious that if it is pushed counter clockwise as viewed in Figure 14 to shift frame 154 and thereby engage clutch 96 with pinion 99, link 189'will slide across the top of pivoted support 196 and will be maintained at such an elevation that the striker device 165 will be inoperative with r'eferencethereto. This is necessary for the.

resason that when the clutch 96 is engaged with pinion 99 disk 185 will have a clockwise rotation. V

If, however, the handle 158 is oscillated in a clockwise direction or to the right so that it assumes the position in which it isillustrated in Figure 15. the-'inclined-cam portion 191 of link 189 will co-operate with the support 196 to the end that the link will be lowered to the position in which it is shown in Figure 15. In such position the shoulder 187 is disposed in the path .of striker head 175. The disk 185 is now being rotated in a counter-clockwise direction due to the engagement of clutch 96 with pinion 98. It

will beobvious that when pin 200 limits the The sadism er the handle i s t ere;

neutral position" results in 0801 'ating the ota-l support 196' were position indicated hy dotted lines in Figure whereby spring l99' jfislsubject'ed toincreased-tension. As soon,

however, as clut'ch 96'is disengaged and the I reason of disk 185 ceases, frictional engagement of striker head 175-with shouldered portion 187 of link' 1 189" will 'he relievedaa-nd only under such circumstances. will the in creased tension oi" springi'wgbeadequate to restore" to" an upright position the "pivotal support 1961' IHHIOViHg" toward such posi? tion the support i nteract withthe canr surface 191 of thelink tolift the? link again tohorizontal whereupon the shoulder 187 1 will again be'out er the path of rotation of striker head 1'7.5-. p I i lemming; mm; of team" 1'35 and 158 An interlocking feature rnay new be denected a link 2G5 withtheshort arm 20.6

scribed, the purpose oi which isto pre'vent an accidental shifting of clutch 9fi' during step rotation of the work. Itzwill be recollected that with-reference to the" disclosure in connection with- Figure 11 and the hand lever for the, engagement ofdogs ll' l, 111611131011 was made of an upstanding 1 89 engaged by aspring d'etent 14501] The arm 139 is con:-

on a rock shaft sustained longitudinally of the main axis of themachinei' Returning now to Figure 145 it: will be observed: that afiiig er 2085's carried at the endof rock shaft. 207 r and is disposed when elevatedtfo liit the end of the oscillatory link 18-9 whereby to render striker device 165- upon dislr-185 inoperative ior the shifting of clutch leveri 1 58; I fllhus,;-

, the said oscillatory link 1 89 f nay not only-Ibo I m litted due to the clock-wise rotation of disk lever 1 is operated a diiection suchfas to lower the dogs; 111 to: their operative po'sis tions. 1

i 7, 1354s iniits;dottedlinei'position' in Figure 11 lever 158 will befreestoimove' counter-clock "'Wi sei-asviewed i-n' Figures: I'arid lb for the; [engagement off clutch 96 with: pinionn:99.-; 1 Thezobvious purpose of,"thisiinterlockingfewtur ei is? to; prevent clutch .96; from being en gaged' with pinion 99'sor as torotate shaft: 15

- Figures 16 and; 17 show theyopposit'easide intone-direction whenrithe dog-sin are operative to rotate such shaftv in: theother direc i 0t." disk 185 from; that which: appears in Figures 1 13' and 15.? sueh-qyi'elidable striker device as that indicated at" 165" is em- The niere litting 0t llIIki 189 effects no-"interloek hutit will. be noted. that the length: ei j finger 208 is; suchfthat elementYlSdwillcontact therewith it an attempt is? made: to

shift lever. 158-: counten-clocltwisei"when thefinger- 208 is elevated... If the finger: 20 8=is- V lowered to theposition indicated; in Figure" 15 (as is always the casefwhenhandilever thereofa single strikepinl210 is; inounted in a fixed position to project from theface s a-On this side of the d'isk; i place I ofthe disk. This strike in-1S1 fixedior, the 2 reason that it has for its'function the 'sto p ping of rotationin the m ainshaft '15 and related parts at a definite predetermined po- ''o neutml position are similar in functionbut: operate to adjust clutch shaft lever 158 in opposite directions.

. They are sometimes called knock-out fingers ,1

'due to their action in clutch disengagement;

Lint-k 212 is shouldered at 213- for engage 'ment by the" strike'pin'210l The link is pro-- vided 'withfaninclined surface at f21 l; and is normally carried by pivoted support 215." out or thepa-thof pin 210. Atension spring 216; holds the pivoted support 215normally in contact witlrthe stop 217. -These parts correspond in function to the pivoted sup port 196 and related parts although it will'- be noted that the two 'supports'are oscill'a-} tory inop-posit'e directions from their'respecs tivestops. It will be obvious that when handllever 158isshifted to the left as viewed in Figure 15 as for the engagementoi clutch 96*witlrpinion 98 the link 212fwillbe maintained by support 215 in an elevated position i wherehyfthe sl10ulder213 is kept out of the" path of rotation 'ofpin' 210. If, however, U 3

handle 15 8- is moved tothe right'asviewed in Figure 17, the passage of the inclined surface 214 a'crossthe. end ofsupport 215 will permit link or knock-out finger 212 to drop until its shoulder 213,,isin a position to be struclr by the'pin 210. The encounter of the pin'withthe shoulder 213 will always result inrtherstoppingjofshaft 15 and rotaryjparts carried thereby" in a certain. predetermined positionfrornwhich theveneerwinding operl I When the'le'ver 158' isirestored to neutral if through the encounter ofshoulder213 and r pini 210; the pivoted support 2l5- will be) swung. to the left tofits dottedl'ine position inQFigure 16 thereby putting under tension ation may. be started,

the' spring 216 connected with this support.

As soonas the clutch isdisengaged, the resuiting relief-oi pressure on thev shoulder"? is will permitthe spring to restore the, su port and the link 212 to their original po- ,sitions. v V I ,iA-u tom w tz' o reoei'se' aw ing work retrdcton :Inaddition to the automatic Ineans already described for throwing clutch lever at an angle of approximately 45 degrees with reference to the path of movement of the 158 to its neutral position to'disengage clutch element 96 from either of the pinions 98' and 99 with which it may happen to be connected there is further means provided which operatesat the proper time to engage clutch element 96 with pinion99. This mechanism will now be described.

Reference has hitherto been 'made to the slide 50which is actuated by means of connecting rod 51 for the purpose of adjusting the drum 9 between its advanced and retracted positions. An arm 220 (Figs. 4 and which is connected with this Sl1Cl8 rigidly for movement therewith 1s p-rovlded at its end with a cam finger 221 inclined at about degrees with reference to the direction of movement of slide and said arm. The

operative portion 220 of this cam finger depends from the adjacent portions of the arm.

In pivotal connection at 223 with the clutch actuating slide of frame 154 is a complementary cam member 225 which is pulled b a tension s urin 226 into abutment with the shouider 227. A strike plate 230 projects upwardly from member 225 andis disposed slide or frame 154 which actuates clutch elenent 96. The plate 230 provides upon its.

opposite sides bearing surfaces with which the depending portion 221 of cam finger 220 is adapted to interact. The arraifgement is such that when the slide 50 moves toward the 'left as viewed fromthe front of the machine 221 has passed. Upon the return movement of the cam when the block 9 is being retracted the cam will strike the opposite face of plate 230 in a direction such that member 225 will abut shoulder 227 and will be restrained thereby against oscillation. The

continued movement of the cam will result in forcing the entire sliding frame 154 rear wardly wher by to engage clutch element 96 r with pinion 99.

As will hereinafter be explained more fully w the retraction of drum 9 represents one of the final movements in the box forming operation and it is advantageous therefore to utilize such retraction to restore the rotating parts of the machine including shaft 15, drum 9, and chuck disk S te their original rotative positions whereby to facilitate the initial operations incident to forming the next box.

The engagement of clutch 96 under the cir-' cumstances above mentioned involves the automatic movement of hand lever 158 which is adjusted in accordance with the movement of slide 154' toward the position indicated in Figure 4. The link or knock-out finger 212 is accordingly dropped to receive the impact of pin 210 and this arrangement is such that the automatically commenced rotation of shaft 15 will have a duration only. suflicient to raise pin 210 to a point where it will interact withlink 212 to throw out the clutch again and permit the parts to come to rest.

To guide and confine the sliding frame154 for the movement just described it is convenient to provide at 2.32 a frame extension having a laterally projecting arm 233 which provides a seat at 234 for the adjacent portion ofv the sliding frame 154. This portion ofthe frame or yoke 154 is slotted at 235 to receive a guide pin 236 projecting upwardly from the seat 234. An over-hangingplate 237 i (Fig. 35) is fastened to the stationary frame element 233 and holds the slotted portion of the sliding frame or yoke 154tothe seat.

Work clumping mechanism I will now describe the construction of drum 9 reference being made for that purpose to Figures 22 to 27 inclusive.

In my former patent above referred to I employ a pressure bar for'the purpose of holding the veneer or side wall material of the box to the box bottom and to the drum or mandrel. Such a bar is shown at 240 and is mounted on lever 241 (see Fig. 19) which is fulcrumed on shaft 242 and is oscillated by an adjustable link 243 which is connected to the pedal 244 (Figs. 2, 19 and 26). A spring 245 (Fig. 19) keeps the pedal and the pressure bar normally lifted. W'hen the pedal is depressed the pressure bar 240 is' I likewise depressed. It may be added at this point that pedal 244 is overlapped marginally by pedal 182. The. latter pedal when depressed is adapted to shift clutch lever 158 to engage clutch 96 with pinion 98, whereby to rotate the drum in a veneer winding direction. Thus, throughpedal 244 the pressure bar may be forced in the direction of the drum without starting the rotation of the drum, whereas if pedal 182 is depressed it carries with it pedal 244 whereby to'lower the pressure bar and simultaneously to set the drum into rotation.

In the present machine means is provided to utilize the initial movement of'the pressure bar for locking the veneer or side wall material of the box to the drum 9 for rotation therewith. The arrangement whereby the veneer may be engaged and disengaged by the drum as desired will now be described.

The drum 9 comprises a hollow cylindrical" member provided internally with hubs 247 and 248 screwed to sleeve 280 which is in" tively the drum 9 and flange 8 were described in my former patent. I have, however, provided a novel and 1m.-

proved mounting for the standard stapling n'iachine, the latter being'designated in its entirety by reference character 300 (Figs. 1 and 19). Power for the operation of the stapling machine is derived from a sprocket 301 on shaft 92, (Figs. 2 and 3). A link 302 is piv-.

oted concentrically with shaft 92 and is pivotally connected at 303 with a similarlink frame of the box machine. Pivoted to bracket 304 which is pivoted concentrically with sprocket 305 to the frame of the stapling machine 300. Idler sprockets 306 and 307 are connected respectively by chains 308 and 309 with sprockets 305 and 301 whereby to maintain continuous drive to sprocket 305 irrespective of the .position of adjustment of the frame of stapling machine 300. From the continuously rotating sprocket 305 power is derived not only for the actuation of the stapling mechanism but also for the bodily adjustment of the stapling machine frame longitudinally on the box making machine.

The means by which thisadjustment is offected comprises a part of the present invention' and will now be d'escribed in (18113.11.

Act/Mating mechanism for stapling machine 7 I carrier v V 'The stapling machine frame is supported in part by a wheel 310 which runs upon a track 311 carried by bracket 312 from the 312 is an arm 313 which carries a member 314 which is preferably surfaced at 315 with brake lining, leather or the like. A hanger 316 pivoted to stop member 330 at 342 (Fig.

21) has a projecting stud 317' upon which is a roller 318 engaging the under side of memher 314 the arran ement bein such that the hanger may be raised and lowered to affect a'corresponding adjustment of the member 314 about its pivotal connection with bracket 312. The flange wheel 41'? directly'connected with sprocket 305 is adapted to contact with the surfacing 315 of member 314 when the member is elevated. The pressure of roller.

318 on the under side of the member is such cated in Figure 19 for oscillatory adj ustment;

A worm 325 is suitably journaled in the frame of the stapling machine immediately above the rack and in a position to mesh therewith when therack is oscillated upwardly. The worm. receives power through bevel gearing at 826 (Fig.20) which .connect it with drive shaft 327 forthestapling-mechanism.

ltotation of the drive shaft is. controlled througha so-called'Morg'an clutch disposed at 328, this clutch being of the type. already disclosed herein and controlled by means of the trip 329 and the stop 330 (Fig. 21).

The arrangement is such that when the stop is withdrawn from the path of the trip the clutch engages automatically and remains in engagement until the stop is again interposed in the path of the trip.

' From the foregoing, it will be obvious that whenever the driving shaft 327 is operativethrough the engagement of clutch 328. the worm 325 is also in operation so that when the rack 320 is oscillated upwardly into mesh with the worm a feeding operation in accordance with thepitch of the wormwill occur.

Itis, of course, undesirable to have a con-. tinuous feed for the translation of the stapling machine. The stapling machine should be allowed to come to'rest during the driving and clenching of each staple and should be advanced only intermediate the stapling,

driving, and-clenching operations; For this reason the worm 3251s preferably of a peculiar 7 construction in that its thread has a pitch for a circumferential extent of considerably less than .360 degrees.

7 The portion of the. worm thread which has a pitch is indicated at 335 in Figure 22 and it will be noted that f the entire portion 3360f the worm thread is disposed. wholly in a plane normal to the axis of the worm. Thislast mentioned portion of the worm thread could be wholly omitted so far as the feedingoperation is concerned but it has a valuable function in thatit maintains the worm in positive mesh with the rack for V the full 360 degrees of. worm rotation.

The plane in which portion 336 of they worm thread is disposed is such as to insure that the stapling mechanism will not only be per-' mitted to remain stationary but actually insures, through its'interlocking engagementv between two teeth of the rack, that the stapling mechanism must remain stationary.

The worm is so designed and is driven at such. a speed from shaft 327 that the period for which it remains stationary corresponds to the periodrequired for the stapling operation of the standard machine designated at 300. That portion of the worm threadshown at 335 has such a pitch and extent as to advance the stapling .machine for the desired dis-, tance between operations thereof. 7

The advance of the staplingmachine in either direction and the function thereof are controlled by a single handle 340 mounted upon the end of a rock shaft 341 (Figs. 19 and 21). The rocker stop arm 330 which releases clutch 328 may be directly connected -with rock shaft 341 as indicated in Figure 21, and the hanger 316 which carries roller 318 may be pivotally connected at 342 to the stop 

